| 氯化钡和铝酸盐水泥改性石膏正交试验研究 |
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| 引用本文： | 耿飞,刘开平,孟刚,温久然,张凯峰.氯化钡和铝酸盐水泥改性石膏正交试验研究[J].非金属矿,2016(4):67-70. |
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| 作者姓名： | 耿飞 刘开平 孟刚 温久然 张凯峰 |
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| 作者单位： | 1. 中建西部建设北方有限公司，陕西西安 710065; 长安大学材料科学与工程学院，陕西西安 710061;2. 长安大学材料科学与工程学院,陕西西安,710061;3. 中建西部建设北方有限公司,陕西西安,710065 |
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| 基金项目： | 新疆兵团工业科技攻关项目(2014BA017)；新疆兵团科技支疆计划项目(2014AB027)。 |
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| 摘 要： | 采用正交试验研究了氯化钡和铝酸盐水泥复掺改性石膏复合胶凝材料的力学性能、吸水率和耐水性，并分析了改性机理。结果表明，水膏比为0.53，氯化钡掺量为10%，铝酸盐水泥掺量为20%时，石膏复合胶凝材料28 d抗折软化系数最高；水膏比为0.53，氯化钡掺量为10%，铝酸盐水泥掺量为25%时，石膏复合胶凝材料28 d抗压软化系数最高。通过XRD和SEM分析可知，复掺改性剂可以改变其微观形貌，并没有使晶体结构密实。
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| 关 键 词： | 建筑石膏 改性 强度 耐水性 |
Orthogonal Test Reserch of Modiifed Gypsum by Barium Chloride and Aluminate Cement |
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| Abstract: | By adopting the method of orthogonal test, the mechanical properties, water absorption and water-resistant property of composite cementitious based on modiifed gypsum by barium chloride and aluminate cement were studied. The results showed that when the ratio of water to binder was 0.53, barium chloride was 10%, aluminate cement was 20%, its softening coefifcient of lfexural reached the highest. Moreover, when the ratio of water to binder was 0.53, barium chloride was 10% and aluminate cement was 25%, its softening coefifcient of compressive reached the highest. The analysis on XRD and SEM showed that the modiifers can change microstructures, but can’t densify the crystal structure. |
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| Keywords: | building gypsum modiifcation strength water resistance |
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